会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 60. 发明授权
    • Mobile terminal apparatus, radio base station apparatus and radio communication method
    • 移动终端装置,无线基站装置和无线通信方法
    • US09124320B2
    • 2015-09-01
    • US13978330
    • 2011-12-09
    • Satoshi NagataTetsushi AbeYoshihisa Kishiyama
    • Satoshi NagataTetsushi AbeYoshihisa Kishiyama
    • H04Q7/00H04B7/04H04B7/02H04L25/03H04L25/02
    • H04B7/0456H04B7/024H04L25/0226H04L25/03904H04L25/03955
    • A mobile terminal apparatus estimates downlink channel states using respective reference signals included in downlink signals from plural cells; selects PMIs (Precoding Matrix Indicators) using a codebook based on the channel states; estimates a phase difference between the cells based on the selected PMIs or the channel states; and transmits information of the phase difference and the selected PMIs to radio base station apparatuses of the respective cells. A radio base station apparatus receives an uplink signal including a PMI and the information of the phase difference between the cells; multiplies a transmission signal by a precoding weight corresponding to the PMI; adjusts the phase difference between the cells with use of the information of the phase difference between the cells; and transmits the transmission signal to a radio base station apparatus of another cell by coordinated multi-point transmission.
    • 移动终端设备使用包括在来自多个小区的下行链路信号中的各个参考信号来估计下行链路信道 使用基于信道状态的码本选择PMI(预编码矩阵指示符); 基于所选择的PMI或信道状态来估计小区之间的相位差; 并将相位差信息和所选择的PMI发送到各小区的无线基站装置。 无线基站装置接收包括PMI的上行链路信号和小区之间的相位差的信息; 将发送信号乘以对应于PMI的预编码权重; 使用细胞之间的相位差的信息来调整细胞之间的相位差; 并通过协调的多点发送将发送信号发送到另一小区的无线基站装置。